<template>
    <div>
        <!-- 面包屑导航区 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图 -->
        <el-card>
            <!-- 搜索 添加 -->
            <el-row :gutter="20">
                <el-col :span="6">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
                </el-col>
            </el-row>
            <!-- 用户列表区域 -->
            <el-table :data="userlist" border stripe v-loading="load" element-loading-text="拼命加载中">
                <!-- stripe: 斑马条纹
                border：边框-->
                <el-table-column type="index" label="#" align="center"></el-table-column>
                <el-table-column prop="username" label="姓名" align="center"></el-table-column>
                <el-table-column prop="email" label="邮箱" align="center"></el-table-column>
                <el-table-column prop="mobile" label="电话" align="center"></el-table-column>
                <el-table-column prop="role_name" label="角色" align="center"></el-table-column>
                <el-table-column label="状态" align="center">
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180" align="center">
                    <template slot-scope="scope">
                        <el-button
                                type="primary"
                                icon="el-icon-edit"
                                size="small"
                                circle
                                @click="showEditDialog(scope.row.id)"
                        ></el-button>
                        <el-button
                                type="danger"
                                icon="el-icon-delete"
                                size="small"
                                circle
                                @click="removeUserById(scope.row.id)"
                        ></el-button>
                        <el-tooltip
                                class="item"
                                effect="dark"
                                content="角色分配"
                                :enterable="false"
                                placement="top"
                        >
                            <el-button
                                    type="warning"
                                    icon="el-icon-setting"
                                    size="small"
                                    circle
                                    @click="showSetRole(scope.row)"
                            ></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>

            <!-- 分页区域 -->
            <el-pagination
                    @size-change="handleSizeChange"
                    @current-change="handleCurrentChange"
                    :current-page="queryInfo.pagenum"
                    :page-sizes="[2, 5, 10, 15]"
                    :page-size="queryInfo.pagesize"
                    layout="total, sizes, prev, pager, next, jumper"
                    :total="total"
            ></el-pagination>
        </el-card>

        <!-- 添加用户的对话框 -->
        <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
            <!-- 内容主体 -->
            <el-form
                    :model="addUserForm"
                    ref="addUserFormRef"
                    :rules="addUserFormRules"
                    label-width="100px"
            >
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addUserForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addUserForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addUserForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="addUserForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
        </el-dialog>

        <!-- 修改用户的对话框 -->
        <el-dialog
                title="修改用户信息"
                :visible.sync="editDialogVisible"
                width="50%"
                @close="editDialogClosed"
        >
            <!-- 内容主体 -->
            <el-form
                    :model="editUserForm"
                    ref="editUserFormRef"
                    :rules="editUserFormRules"
                    label-width="70px"
            >
                <el-form-item label="用户名">
                    <el-input v-model="editUserForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editUserForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="editUserForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUser">确 定</el-button>
      </span>
        </el-dialog>

        <!-- 分配角色对话框 -->
        <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClosed">
            <div>
                <p>当前用户：{{userInfo.username}}</p>
                <p>当前角色：{{userInfo.role_name}}</p>
                <p>
                    分配角色：
                    <el-select
                            v-model="selectRoleId"
                            filterable
                            allow-create
                            default-first-option
                            placeholder="请选择文章标签"
                    >
                        <el-option
                                v-for="item in rolesLsit"
                                :key="item.id"
                                :label="item.roleName"
                                :value="item.id"
                        ></el-option>
                    </el-select>
                </p>
            </div>
            <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
        </el-dialog>
    </div>
</template>

<script>
    export default {
        data() {
            // 自定义邮箱规则
            var checkEmail = (rule, value, callback) => {
                const regEmail = /^\w+@\w+(\.\w+)+$/
                if (regEmail.test(value)) {
                    // 合法邮箱
                    return callback()
                }
                callback(new Error('请输入合法邮箱'))
            }
            // 自定义手机号规则
            var checkMobile = (rule, value, callback) => {
                const regMobile = /^1[345789]\d{9}$/
                if (regMobile.test(value)) {
                    return callback()
                }
                // 返回一个错误提示
                callback(new Error('请输入合法的手机号码'))
            }
            return {
                // 获取用户列表查询参数对象
                queryInfo: {
                    query: '',
                    // 当前页数
                    pagenum: 1,
                    // 每页显示多少数据
                    pagesize: 5
                },
                userlist: [],
                total: 0,
                load: true,
                // 添加用户对话框
                addDialogVisible: false,
                // 用户添加
                addUserForm: {
                    username: '',
                    password: '',
                    email: '',
                    mobile: ''
                },
                // 用户添加表单验证规则
                addUserFormRules: {
                    username: [
                        {required: true, message: '请输入用户名', trigger: 'blur'},
                        {
                            min: 2,
                            max: 10,
                            message: '用户名的长度在2～10个字',
                            trigger: 'blur'
                        }
                    ],
                    password: [
                        {required: true, message: '请输入用户密码', trigger: 'blur'},
                        {
                            min: 6,
                            max: 18,
                            message: '用户密码的长度在6～18个字',
                            trigger: 'blur'
                        }
                    ],
                    email: [
                        {required: true, message: '请输入邮箱', trigger: 'blur'},
                        {validator: checkEmail, trigger: 'blur'}
                    ],
                    mobile: [
                        {required: true, message: '请输入手机号码', trigger: 'blur'},
                        {validator: checkMobile, trigger: 'blur'}
                    ]
                },
                // 修改用户
                editDialogVisible: false,
                editUserForm: {},
                // 编辑用户表单验证
                editUserFormRules: {
                    email: [
                        {required: true, message: '请输入邮箱', trigger: 'blur'},
                        {validator: checkEmail, trigger: 'blur'}
                    ],
                    mobile: [
                        {required: true, message: '请输入手机号码', trigger: 'blur'},
                        {validator: checkMobile, trigger: 'blur'}
                    ]
                },
                // 分配角色对话框
                setRoleDialogVisible: false,
                // 当前需要被分配角色的用户
                userInfo: {},
                // 所有角色数据列表
                rolesLsit: [],
                // 已选中的角色Id值
                selectRoleId: ''
            }
        },
        created() {
            this.getUserList()
        },
        methods: {
            async getUserList() {
                const {data: res} = await this.$http.get('users', {
                    params: this.queryInfo
                })
                if (res.meta.status !== 200) {
                    return this.$message.error('获取用户列表失败！')
                }
                this.userlist = res.data.users
                console.log(JSON.stringify(res.data))
                this.total = res.data.total;
                //设置延迟时间看看loding的加载效果
                setTimeout(() =>{
                    this.load = false
                },2000);
            },
            // 监听 pagesize改变的事件
            handleSizeChange(newSize) {
                // console.log(newSize)
                this.queryInfo.pagesize = newSize
                this.getUserList()
            },
            // 监听 页码值 改变事件
            handleCurrentChange(newSize) {
                // console.log(newSize)
                this.queryInfo.pagenum = newSize
                this.getUserList()
            },
            // 监听 switch开关 状态改变
            async userStateChanged(userInfo) {
                // console.log(userInfo)
                const {data: res} = await this.$http.put(
                    `users/${userInfo.id}/state/${userInfo.mg_state}`
                )
                if (res.meta.status !== 200) {
                    userInfo.mg_state = !userInfo.mg_state
                    return this.$message.error('更新用户状态失败')
                }
                this.$message.success('更新用户状态成功！')
            },
            // 监听 添加用户对话框的关闭事件
            addDialogClosed() {
                this.$refs.addUserFormRef.resetFields()
            },
            // 添加用户
            addUser() {
                // 提交请求前，表单预验证
                this.$refs.addUserFormRef.validate(async valid => {
                    // console.log(valid)
                    // 表单预校验失败
                    if (!valid) return
                    const {data: res} = await this.$http.post('users', this.addUserForm)
                    if (res.meta.status !== 201) {
                        this.$message.error('添加用户失败！')
                    }
                    this.$message.success('添加用户成功！')
                    // 隐藏添加用户对话框
                    this.addDialogVisible = false
                    this.getUserList()
                })
            },
            // 编辑用户信息
            async showEditDialog(id) {
                const {data: res} = await this.$http.get('users/' + id)
                if (res.meta.status !== 200) {
                    return this.$message.error('查询用户信息失败！')
                }
                this.editUserForm = res.data
                this.editDialogVisible = true
            },
            // 监听修改用户对话框的关闭事件
            editDialogClosed() {
                this.$refs.editUserFormRef.resetFields()
            },
            // 修改用户信息
            editUser() {
                // 提交请求前，表单预验证
                this.$refs.editUserFormRef.validate(async valid => {
                    // console.log(valid)
                    // 表单预校验失败
                    if (!valid) return
                    const {data: res} = await this.$http.put(
                        'users/' + this.editUserForm.id,
                        {
                            email: this.editUserForm.email,
                            mobile: this.editUserForm.mobile
                        }
                    )
                    if (res.meta.status !== 200) {
                        this.$message.error('更新用户信息失败！')
                    }
                    // 隐藏添加用户对话框
                    this.editDialogVisible = false
                    this.$message.success('更新用户信息成功！')
                    this.getUserList()
                })
            },
            // 删除用户
            async removeUserById(id) {
                const confirmResult = await this.$confirm(
                    '此操作将永久删除该用户, 是否继续?',
                    '提示',
                    {
                        confirmButtonText: '确定',
                        cancelButtonText: '取消',
                        type: 'warning'
                    }
                ).catch(err => err)
                // 点击确定 返回值为：confirm
                // 点击取消 返回值为： cancel
                if (confirmResult !== 'confirm') {
                    return this.$message.info('已取消删除')
                }
                const {data: res} = await this.$http.delete('users/' + id)
                if (res.meta.status !== 200) return this.$message.error('删除用户失败！')
                this.$message.success('删除用户成功！')
                this.getUserList()
            },
            // 展示分配角色的对话框
            async showSetRole(role) {
                this.userInfo = role
                // 展示对话框之前，获取所有角色列表
                const {data: res} = await this.$http.get('roles')
                if (res.meta.status !== 200) {
                    return this.$message.error('获取角色列表失败！')
                }
                this.rolesLsit = res.data
                this.setRoleDialogVisible = true
            },
            // 分配角色
            async saveRoleInfo() {
                if (!this.selectRoleId) {
                    return this.$message.error('请选择要分配的角色')
                }
                const {data: res} = await this.$http.put(`users/${this.userInfo.id}/role`, {rid: this.selectRoleId})
                if (res.meta.status !== 200) {
                    return this.$message.error('更新用户角色失败！')
                }
                this.$message.success('更新角色成功！')
                this.getUserList()
                this.setRoleDialogVisible = false
            },
            // 分配角色对话框关闭事件
            setRoleDialogClosed() {
                this.selectRoleId = ''
                this.userInfo = {}
            }
        }
    }
</script>

<style lang="less" scoped>
    .el-card {
        margin-top: 10px;
    }

    .el-table {
        margin-top: 10px;
    }
    .el-pagination{
        margin-top: 10px;
    }
</style>
